Flamen Fast-Release Flexible Silicone Ice Ball Maker Tray/Molds - Round Ice Ball Spheres (1 pack) GREAT GIFT- AMAZON BEST SELLER ICE BALL MAKER Makes perfect 2-inch ultra-slow melting ice spheres - perfect for whiskey, scotch, bourbon, cocktails and much more. BPA-FREE SILICONE TRAY It is FDA Approved! Its is a flexible tray that will NOT crack in the freezer. Its material shapes the bottom well, which makes it easy to release ice cubes. 4 x 4.5 CM ROUND ICE BALL SPHERES The ice ball will have less surface area than equivalent ice cubes, which means they melt slowly without diluting your drink. DISHWASHER SAFE Toss the ice ball maker tray in the dishwasher machine for an easy clean. VERSATILE Flexible Silicone Ice Trays is more than just a ice ball maker, it can also be used to freeze other liquid such as juices, milk, and much more.